Repairing/Cleaning Packard Shutters

Does anyone know how to repair or clean Packard shutters?

I have several that will open but not close. I know about the Bulb option with the pin in the hole; this question does not concern that function.

I think they are just dirty or corroded. I have disassembled one and see how they work.

Any ideas?

Since you have disassembled one, you can see how simple they are. Clean all the bushings/bearing surfaces, and especially the piston and inside of the brass tube. There is not much to go wrong. If you do have a damaged part, contact the factory. I talked to them recently and they do have replacement parts.

I just oiled the piston and it works like a dream now.
Regards
Bill

Normally the piston is used dry, as oil will over time create sludge that will inhibit operation. But....the piston and piston sleeve need to be extremely clean. The shutter-blades can be given a light coating of graphite, gently rubbed in, both sides, with your finger. (Wash your hands, afterwards). In fact, I would use nothing but graphite for any lubrication on a Packard style shutter. I have old Packard shutters that have common pencil shaded onto both sides of the blades. (another source of graphite). The inside of the metal shell of the shutter is prone to rust, and this can inhibit the movement of the parts. You can use a scotchguard pad, or steel wool to remove the rust. Properly working, it should not take very much "squeeze" on the bulb to operate the shutter.

I've redone a few in the past and I agree with Phototone, Graphite as lubrication on the blades and pistons. In a pinch I have used kerosene on the pistons but they are designed to work dry. If something inside is rust use some WD40 and 0000 steal wool to carefully remove rust and you should be all set. they are really easy to get working again.

Thanks everyone, I think I'll give those suggestions a try.